Bentonville and the Jet; Rio Ratings Down for NBC: Saturday Wrap

Here are highlights of Saturday’s top breaking stories from around the world:

Wal-Mart Stores’ negotiations to acquire Jet.com are largely about locking up Jet’s founder in a multiyear commitment to be its head of e-commerce, where it very much needs help competing against Amazon.com. The acquisition, said to be worth $3 billion, may be announced as soon as Monday.

From the Olympics: NBC’s TV audience for the opening ceremonies was 35 percent smaller than for the London games in 2012. Organizers apologized for incredibly slow security processing that led to 2-kilometer-long lines to get into the beach volleyball venue. An explosion at the end of the men’s road cycling race turned out to be police detonating a suspicious package.

The African National Congress lost governing control of five of South Africa’s eight largest metropolitan areas, including Johannesburg, in a rebuke to the rule it has exercised since taking power more than two decades ago under Nelson Mandela.

President Barack Obama’s administration, under court order, declassified and released its 2013 internal policy outlining when and how the U.S. military could undertake drone strikes against suspected terrorists overseas.

Southwest Airlines’ board put out a strongly worded letter telling the company’s unions that CEO Gary Kelly is here to stay and that their no-confidence vote in him -- unheard of at a company that prides itself on labor-management bliss -- is misplaced and destructive.

Belgium’s prime minister cut short his vacation and called a meeting of the National Security Council after a machete attack on two female police officers. The officers were injured; the attacker was killed.